Slightly OT- Maggie's never been shown in a tux either, that I can recall, so apparently lesbian = free tuxes in the DCU? Idk.
As for this? keeping with the assumption she came out formally between 52 and now, and even if it was earlier, I'm not seeing it as too conflicting. Different people handle the whole coming out process differently. Some take it slow while others just fling the door open and go for it. Add in the near-death experience and I'm not thinking it's too much a stretch.